title: [Nikolai Aleksandrovich Semakhko; 3rd anniversary of his death].
mesh_terms: D000846:Anniversaries and Special Events; D003643:Death; D049672:History, 19th Century; D049673:History, 20th Century
keywords: BIOGRAPHY
vernacular_title: Nikolai Aleksandrovich Semakhko; k trekhletiiu so dnia smerti.